울릉도 주변 해역에서 식물플랑크톤 종 조성 분포

Title
울릉도 주변 해역에서 식물플랑크톤 종 조성 분포
Alternative Title
Distribution of phytoplankton species composition in the Ulleung island in the East Sea, Korea
Author(s)
권오윤; 강정훈; 윤성진
KIOST Author(s)
Kang, Jung Hoon(강정훈)
Publication Year
2018-05-25
Abstract
To better understand seasonal variation in phytoplankton community structure in the coastal waters of Ulleung island, 4 research cruises were carried out between February and November 2017. Phytoplankton community structure and ambient seawater physicochemical parameters were examined. The phytoplankton community in the coastal waters of Ulleung island was mainly composed of diatoms and dinoflagellates, with 242 taxa in 70 genera of diatoms and 104 taxa in 26 genera of dinoflagellates. Several species of Chlorophyta, Chrysophyta, and Cyanophyta were also observed. Chain-forming diatoms were the most dominant phytoplankton the group throughout the year, except in summer when dinoflagellates dominated in the coastal waters. Phytoplankton abundance was always higher in coastal than offshore waters, which was mainly determined by availability of nutrient. Prorocentrum dentatum bloom and Chaetoceros debilis bloom were observed in the coastal waters during spring and autumn 2017, respectively. The nutrient N:P ratio, rather than Si:N ratio, played a significant role in the regulation of the phytoplankton community structure and the formation of the spring coastal dinoflagellate bloom in the coastal waters of Ulleung island.ater physicochemical parameters were examined. The phytoplankton community in the coastal waters of Ulleung island was mainly composed of diatoms and dinoflagellates, with 242 taxa in 70 genera of diatoms and 104 taxa in 26 genera of dinoflagellates. Several species of Chlorophyta, Chrysophyta, and Cyanophyta were also observed. Chain-forming diatoms were the most dominant phytoplankton the group throughout the year, except in summer when dinoflagellates dominated in the coastal waters. Phytoplankton abundance was always higher in coastal than offshore waters, which was mainly determined by availability of nutrient. Prorocentrum dentatum bloom and Chaetoceros debilis bloom were observed in the coastal waters during spring and autumn 2017, respectively. The nutrient N:P ratio, rather than Si:N ratio, played a significant role in the regulation of the phytoplankton community structure and the formation of the spring coastal dinoflagellate bloom in the coastal waters of Ulleung island.
URI
https://sciwatch.kiost.ac.kr/handle/2020.kiost/23272
Bibliographic Citation
춘계해양학회, pp.153, 2018
Publisher
한국해양과학기술협의회
Type
Conference
Language
English
Publisher
한국해양과학기술협의회
Related Researcher
Research Interests

Biological oceanography,Zooplankton ecology,Introduction and dispersion of foreign species,생물해양학,동물플랑크톤 생리,생태,외래종 유입,확산

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